Electronic device including acoustically isolated passive radiator within a baffle space and related methods

Abstract

An electronic device may include a housing having an audio output port therein, a display carried by the housing, and an internal partition carried within the housing and defining a baffle space behind at least a portion of the display. The electronic device may also include an audio output transducer carried by the internal partition and acoustically coupled to the audio output port, and a passive radiator within the baffle space, acoustically coupled between the audio output transducer and the display, and acoustically isolated from the audio output port.

That which is claimed is: 
     
       1. An electronic device comprising:
 a housing having an audio output port therein; 
 a display carried by the housing; 
 an internal partition carried within the housing and defining a baffle space behind at least a portion of the display; 
 an audio output transducer carried by the internal partition and acoustically coupled to the audio output port, the audio output transducer being positioned relative to the display to provide haptic feedback through the display; and 
 a passive radiator within the baffle space, acoustically coupled between the audio output transducer and the display, and acoustically isolated from the audio output port to also provide haptic feedback through the display. 
 
     
     
       2. The electronic device of  claim 1  wherein the passive radiator comprises a radiator baffle enclosure carried within the baffle space and having a radiator opening therein, a radiator mass, and radiator suspension coupling the radiator mass within the radiator opening. 
     
     
       3. The electronic device of  claim 2  wherein the radiator baffle enclosure is carried within the baffle space on an underside of the display. 
     
     
       4. The electronic device of  claim 1  wherein the audio output transducer is directed to an underside of the display. 
     
     
       5. The electronic device of  claim 1  wherein the passive radiator is directed to an underside of the display. 
     
     
       6. The electronic device of  claim 1  wherein the passive radiator is spaced apart from the audio output transducer in the baffle space. 
     
     
       7. The electronic device of  claim 1  wherein the audio output transducer is laterally adjacent the passive radiator. 
     
     
       8. The electronic device of  claim 1  wherein the display comprises a touch-screen display. 
     
     
       9. An electronic device comprising:
 a housing having an audio output port therein; 
 wireless communications circuitry carried by the housing; 
 a display carried by the housing; 
 an internal partition carried within the housing and defining a baffle space behind at least a portion of the display; 
 an audio output transducer carried by the internal partition and acoustically coupled to the audio output port, the audio output transducer being positioned relative to the display to provide haptic feedback through the display; 
 a passive radiator within the baffle space, acoustically coupled between the audio output transducer and the display, and acoustically isolated from the audio output port to also provide haptic feedback through the display; and 
 a controller coupled to the wireless communications circuitry, the display, and the audio output transducer, the controller configured to perform at least one wireless communications function, and selectively operate the audio output transducer to drive the passive radiator and provide the haptic feedback through the display. 
 
     
     
       10. The electronic device of  claim 9  wherein the passive radiator comprises a radiator baffle enclosure carried within the baffle space and having a radiator opening therein, a radiator mass, and radiator suspension coupling the radiator mass within the radiator opening. 
     
     
       11. The electronic device of  claim 10  wherein the radiator baffle enclosure is carried within the baffle space on an underside of the display. 
     
     
       12. The electronic device of  claim 10  wherein the audio output transducer is directed to an underside of the display. 
     
     
       13. The electronic device of  claim 10  wherein the passive radiator is directed to an underside of the display. 
     
     
       14. The electronic device of  claim 10  wherein the passive radiator is spaced apart from the audio output transducer in the baffle space. 
     
     
       15. A method of making an electronic device comprising a housing having an audio output port therein, and a display carried by the housing, the method comprising:
 mounting an internal partition within the housing to define a baffle space behind at least a portion of the display; 
 mounting an audio output transducer on the internal partition so that the audio output transducer is acoustically coupled to the audio output port and positioned relative to the display to provide haptic feedback through the display; and 
 mounting a passive radiator within the baffle space so that the passive radiator is acoustically coupled between the audio output transducer and the display, and acoustically isolated from the audio output port to also provide the haptic feedback through the display. 
 
     
     
       16. The method of  claim 15  wherein mounting the passive radiator comprises mounting a passive radiator comprising a radiator baffle carried within the baffle space and having a radiator opening therein, a radiator mass, and radiator suspension coupling the radiator mass within the radiator opening. 
     
     
       17. The method of  claim 16  wherein mounting the passive radiator comprises mounting the passive radiator on an underside of the display. 
     
     
       18. The method of  claim 15  wherein mounting the audio output transducer comprises mounting the audio output transducer to be directed to an underside of the display. 
     
     
       19. The method of  claim 15  wherein mounting the passive radiator comprises mounting the passive radiator to be directed to an underside of the display. 
     
     
       20. The method of  claim 15  wherein mounting the passive radiator comprises mounting the passive radiator to be spaced apart from the audio output transducer in the baffle space.